Button Device for Electronic Device

3. The button device of claim 2, wherein the button part is formed of a transparent material.

4. The button device of claim 2, wherein the inner conductive part is formed in a ring shape to be attached to the button flange part.

8. The button device of claim 7, wherein a plurality of exposed groove parts are formed to be recessed in the support body unit so that the conductive protrusion passes though one of the exposed groove parts.

13. The button device of claim 11, wherein a tapered insertion part formed to be inclined upward toward the restriction step part is formed between the pair of anti-separation parts.

14. The button device of claim 11, wherein a tapered movement part is formed on each of the anti-separation parts so that the key is moved while inserted into the keyhole part.

15. The button device of claim 11, wherein the locking part is disposed to avoid the key when the key is inserted into the keyhole part.

17. The button device of claim 10, wherein a deformation limiting part is formed to protrude from the frame part to limit a range in which the support part is deformed when the key releases the restriction of the locking part.

19. The button device of claim 18, wherein a third waterproofing protrusion is formed to protrude upward from the adhesive conductive part.